From 3c4ccd41fa92d3332ee98b993db82d96584f3bd3 Mon Sep 17 00:00:00 2001
From: Kamil Rytarowski <n54@gmx.com>
Date: Sat, 30 Jul 2016 11:41:40 +0200
Subject: [PATCH] Add basic NetBSD support

---
 extern/poshlib/posh.h     |  7 +++++--
 src/nvcore/CMakeLists.txt |  7 +++++--
 src/nvcore/Debug.cpp      | 17 +++++++++++++++--
 src/nvcore/nvcore.h       |  5 ++++-
 src/nvmath/nvmath.h       |  4 ++--
 src/nvthread/nvthread.cpp |  4 ++--
 6 files changed, 33 insertions(+), 11 deletions(-)

diff --git a/extern/poshlib/posh.h b/extern/poshlib/posh.h
index 3d9e7aa..0fc39ce 100644
--- a/extern/poshlib/posh.h
+++ b/extern/poshlib/posh.h
@@ -306,6 +306,11 @@ LLVM:
 #  define POSH_OS_STRING "FreeBSD"
 #endif
 
+#if defined __NetBSD__
+#  define POSH_OS_NETBSD 1
+#  define POSH_OS_STRING "NetBSD"
+#endif
+
 #if defined __OpenBSD__
 #  define POSH_OS_OPENBSD 1
 #  define POSH_OS_STRING "OpenBSD"
@@ -1027,5 +1032,3 @@ extern posh_i64_t  POSH_ReadI64FromBig( const void *src );
 #ifdef __cplusplus
 }
 #endif
-
-
diff --git a/src/nvcore/CMakeLists.txt b/src/nvcore/CMakeLists.txt
index 9246768..be6cdcb 100644
--- a/src/nvcore/CMakeLists.txt
+++ b/src/nvcore/CMakeLists.txt
@@ -38,9 +38,12 @@ ENDIF(NVCORE_SHARED)
 
 TARGET_LINK_LIBRARIES(nvcore ${LIBS})
 
+# On NetBSD backtrace() is provided by libexecinfo, not libc.
+if (CMAKE_SYSTEM_NAME MATCHES "NetBSD")
+     TARGET_LINK_LIBRARIES(nvcore execinfo)
+endif()
+
 INSTALL(TARGETS nvcore
     RUNTIME DESTINATION bin
     LIBRARY DESTINATION lib
     ARCHIVE DESTINATION lib/static)
-
-
diff --git a/src/nvcore/Debug.cpp b/src/nvcore/Debug.cpp
index e84522a..ae803ab 100644
--- a/src/nvcore/Debug.cpp
+++ b/src/nvcore/Debug.cpp
@@ -51,7 +51,7 @@
 #   endif
 #endif
 
-#if NV_OS_DARWIN || NV_OS_FREEBSD || NV_OS_OPENBSD
+#if NV_OS_DARWIN || NV_OS_FREEBSD || NV_OS_NETBSD || NV_OS_OPENBSD
 #   include <sys/types.h>
 #   include <sys/param.h>
 #   include <sys/sysctl.h> // sysctl
@@ -635,6 +635,19 @@ namespace
 #    else
 #      error "Unknown CPU"
 #    endif
+#elif NV_OS_NETBSD
+#  if NV_CPU_X86_64
+        ucontext_t * ucp = (ucontext_t *)secret;
+        return (void *)ucp->uc_mcontext.__gregs[_REG_RIP];
+#  elif NV_CPU_X86
+        ucontext_t * ucp = (ucontext_t *)secret;
+        return (void *)ucp->uc_mcontext.__gregs[_REG_EIP];
+#  elif NV_CPU_PPC
+        ucontext_t * ucp = (ucontext_t *)secret;
+        return (void *) ucp->uc_mcontext.__gregs[_REG_PC];
+#  else
+#      error "Unknown CPU"
+#  endif
 #elif NV_OS_OPENBSD
 #  if NV_CPU_X86_64
         ucontext_t * ucp = (ucontext_t *)secret;
@@ -666,7 +679,7 @@ namespace
 
         // How to obtain the instruction pointers in different platforms, from mlton's source code.
         // http://mlton.org/
-        // OpenBSD && NetBSD
+        // OpenBSD
         // ucp->sc_eip
         // FreeBSD:
         // ucp->uc_mcontext.mc_eip
diff --git a/src/nvcore/nvcore.h b/src/nvcore/nvcore.h
index 511d23e..b402bb2 100644
--- a/src/nvcore/nvcore.h
+++ b/src/nvcore/nvcore.h
@@ -44,6 +44,9 @@
 #elif defined POSH_OS_FREEBSD
 #   define NV_OS_FREEBSD 1
 #   define NV_OS_UNIX 1
+#elif defined POSH_OS_NETBSD
+#   define NV_OS_NETBSD 1
+#   define NV_OS_UNIX 1
 #elif defined POSH_OS_OPENBSD
 #   define NV_OS_OPENBSD 1
 #   define NV_OS_UNIX 1
@@ -290,7 +293,7 @@ NV_COMPILER_CHECK(sizeof(uint32) == 4);
 #elif NV_CC_GNUC
 #   if NV_OS_LINUX
 #       include "DefsGnucLinux.h"
-#   elif NV_OS_DARWIN || NV_OS_FREEBSD || NV_OS_OPENBSD
+#   elif NV_OS_DARWIN || NV_OS_FREEBSD || NV_OS_NETBSD || NV_OS_OPENBSD
 #       include "DefsGnucDarwin.h"
 #   elif NV_OS_MINGW
 #       include "DefsGnucWin32.h"
diff --git a/src/nvmath/nvmath.h b/src/nvmath/nvmath.h
index fa423a3..7810c9f 100644
--- a/src/nvmath/nvmath.h
+++ b/src/nvmath/nvmath.h
@@ -172,7 +172,7 @@ namespace nv
     {
 #if NV_OS_WIN32 || NV_OS_XBOX
         return _finite(f) != 0;
-#elif NV_OS_DARWIN || NV_OS_FREEBSD || NV_OS_OPENBSD || NV_OS_ORBIS
+#elif NV_OS_DARWIN || NV_OS_FREEBSD || NV_OS_NETBSD || NV_OS_OPENBSD || NV_OS_ORBIS
         return isfinite(f);
 #elif NV_OS_LINUX
         return finitef(f);
@@ -187,7 +187,7 @@ namespace nv
     {
 #if NV_OS_WIN32 || NV_OS_XBOX
         return _isnan(f) != 0;
-#elif NV_OS_DARWIN || NV_OS_FREEBSD || NV_OS_OPENBSD || NV_OS_ORBIS
+#elif NV_OS_DARWIN || NV_OS_FREEBSD || NV_OS_NETBSD || NV_OS_OPENBSD || NV_OS_ORBIS
         return isnan(f);
 #elif NV_OS_LINUX
         return isnanf(f);
diff --git a/src/nvthread/nvthread.cpp b/src/nvthread/nvthread.cpp
index 2db7c87..498c938 100644
--- a/src/nvthread/nvthread.cpp
+++ b/src/nvthread/nvthread.cpp
@@ -88,7 +88,7 @@ uint nv::processorCount() {
     return 6;
 #elif NV_OS_XBOX
     return 3; // or 6?
-#elif NV_OS_LINUX // Linux, Solaris, & AIX
+#elif NV_OS_LINUX || NV_OS_NETBSD // Linux, Solaris, & AIX
     return sysconf(_SC_NPROCESSORS_ONLN);
 #elif NV_OS_DARWIN || NV_OS_FREEBSD || NV_OS_OPENBSD
     int numCPU;
@@ -329,4 +329,4 @@ uint nv::physicalProcessorCount() {
     return processorCount();
 }
 
-#endif
\ No newline at end of file
+#endif